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305001-002-101-102 G20E
A.4.
Adaptation
for Gas Change
All appliances, on delivery, are factory adjusted for use with Propane 37 mbar (G31) or Butane 28-30mbar (G30).
However, it is necessary to determine whether the low pressure regulator you are using is approved for 37 mbar for
Propane or 28-30mbar for Butane, respectively.
In case the appliance is to be used with natural gas, or with Propane and Butane at a pressure of 50 mbar, the
following adjustments must be made after installation, only by a specialist technician, as explained on paragraphs
4.1, 4.2, 4.3 and 4.4:
-
change of injectors
-
change of injector of the Oven pilot burner
-
adjustment of the flow of air into the burner
-
adjustment of the thermomagnetic gas valve of each burner to the position ‘minimum’ (
, small flame)
After the change of the injector and the air regulation, in order to obtain the gas changes it’s necessary
to put a mark on the data plate which is placed on the body of the appliance to indicate the new gas
regulation.
A.4.1 Change of Injectors
The following procedure must be done having the gas supply closed:
To change the injectors on the top burners, you must first remove the grates (2) and unscrew the injector cover (5)
of the appliance Fig. A. You must remove the burners by unscrewing the two screws under the burner that keep
them into position. The injectors may then be changed. At the edge of each thermomagnetic gas valve (1) Figure
C, are the injectors (2). With a number 7 spanner, or a special screwdriver number 7, unscrew the injectors and
replace them with the injectors you will find in the appliance packaging, either those marked ‘Natural Gas’ or those
marked ‘Ι3 B/P: 50 mbar’, depending on the gas you are using.
To change the injectors on the oven burner:
-
Open the oven door, remove the griddles and the metallic surface situated on the bottom of the oven chamber
by pulling up using the hole at the front part.
-
By using a screwdriver, loosen up the two screws and the remove the cover of the burner.
-
With a number 13 spanner, unscrew the injector (2) Fig C’ and replace it with the injector you will find in the
appliance packaging, either this marked ‘Natural Gas’ or this marked ‘Ι3 B/P: 50 mbar’, depending on the gas
you are using.
A.4.2 Change of the injector of the Oven pilot Burner
The following procedure must be done having the gas supply closed.
After changing the burner injector you have to change also the pilot burner injector which are located next to the
main burners.
By using a screwdriver, loosen up the two screws and the remove the cover of the burner of the appliance
according the paragraph A.4.1
With No 11 unscrew the back-end cover of the pilot (12) fig. E and by using a screwdriver replace the injector inside
the body of the pilot.
Place again the cover with a spanner no 11 and put all the parts on place.
WARNING: It is strictly forbidden to modify the entrance of the combustion air differently from the
indicated in this Instruction Manual as well as the combustion products evacuation.
A.4.3 Adjustment of the Flow of Primary Air into the Burner
The following procedure is followed, having the gas supply closed.
The flow of air into the top burners must
be adjusted using the ring (3), Figure C, sited on the burner and supported with a screw (4). Loosen the screw (4),
place the ring in a position such that the distance d=8 mm, for Natural Gas and d=11 mm for the ‘Ι3 B/P: 50 mbar’.
Tighten the screw (4) again so that the ring (3) is properly secured on the burner.
